mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-24 10:48:53 +01:00
467 lines
11 KiB
Go
467 lines
11 KiB
Go
// Copyright 2016 Hajime Hoshi
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//go:build (android || ios) && !ebitencbackend
|
|
// +build android ios
|
|
// +build !ebitencbackend
|
|
|
|
package ui
|
|
|
|
import (
|
|
"fmt"
|
|
"runtime/debug"
|
|
"sync"
|
|
"sync/atomic"
|
|
"unicode"
|
|
|
|
"golang.org/x/mobile/app"
|
|
"golang.org/x/mobile/event/key"
|
|
"golang.org/x/mobile/event/lifecycle"
|
|
"golang.org/x/mobile/event/paint"
|
|
"golang.org/x/mobile/event/size"
|
|
"golang.org/x/mobile/event/touch"
|
|
"golang.org/x/mobile/gl"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/devicescale"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/gamepad"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicscommand"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver/opengl"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/hooks"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/restorable"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/thread"
|
|
)
|
|
|
|
var (
|
|
glContextCh = make(chan gl.Context, 1)
|
|
|
|
// renderCh receives when updating starts.
|
|
renderCh = make(chan struct{})
|
|
|
|
// renderEndCh receives when updating finishes.
|
|
renderEndCh = make(chan struct{})
|
|
)
|
|
|
|
func init() {
|
|
theUI.userInterfaceImpl = userInterfaceImpl{
|
|
foreground: 1,
|
|
errCh: make(chan error),
|
|
|
|
// Give a default outside size so that the game can start without initializing them.
|
|
outsideWidth: 640,
|
|
outsideHeight: 480,
|
|
}
|
|
theUI.input.ui = &theUI.userInterfaceImpl
|
|
}
|
|
|
|
// Update is called from mobile/ebitenmobileview.
|
|
//
|
|
// Update must be called on the rendering thread.
|
|
func (u *userInterfaceImpl) Update() error {
|
|
select {
|
|
case err := <-u.errCh:
|
|
return err
|
|
default:
|
|
}
|
|
|
|
if !u.IsFocused() {
|
|
return nil
|
|
}
|
|
|
|
gamepad.Update()
|
|
|
|
renderCh <- struct{}{}
|
|
go func() {
|
|
<-renderEndCh
|
|
u.t.Stop()
|
|
}()
|
|
u.t.Loop()
|
|
return nil
|
|
}
|
|
|
|
type userInterfaceImpl struct {
|
|
graphicsDriver graphicsdriver.Graphics
|
|
|
|
outsideWidth float64
|
|
outsideHeight float64
|
|
|
|
foreground int32
|
|
errCh chan error
|
|
|
|
// Used for gomobile-build
|
|
gbuildWidthPx int
|
|
gbuildHeightPx int
|
|
setGBuildSizeCh chan struct{}
|
|
once sync.Once
|
|
|
|
context *contextImpl
|
|
|
|
input Input
|
|
|
|
fpsMode FPSModeType
|
|
renderRequester RenderRequester
|
|
|
|
t *thread.OSThread
|
|
|
|
m sync.RWMutex
|
|
}
|
|
|
|
func deviceScale() float64 {
|
|
return devicescale.GetAt(0, 0)
|
|
}
|
|
|
|
// appMain is the main routine for gomobile-build mode.
|
|
func (u *userInterfaceImpl) appMain(a app.App) {
|
|
var glctx gl.Context
|
|
var sizeInited bool
|
|
|
|
touches := map[touch.Sequence]Touch{}
|
|
keys := map[Key]struct{}{}
|
|
|
|
for e := range a.Events() {
|
|
var updateInput bool
|
|
var runes []rune
|
|
|
|
switch e := a.Filter(e).(type) {
|
|
case lifecycle.Event:
|
|
switch e.Crosses(lifecycle.StageVisible) {
|
|
case lifecycle.CrossOn:
|
|
if err := u.SetForeground(true); err != nil {
|
|
// There are no other ways than panicking here.
|
|
panic(err)
|
|
}
|
|
restorable.OnContextLost()
|
|
glctx, _ = e.DrawContext.(gl.Context)
|
|
// Assume that glctx is always a same instance.
|
|
// Then, only once initializing should be enough.
|
|
if glContextCh != nil {
|
|
glContextCh <- glctx
|
|
glContextCh = nil
|
|
}
|
|
a.Send(paint.Event{})
|
|
case lifecycle.CrossOff:
|
|
if err := u.SetForeground(false); err != nil {
|
|
// There are no other ways than panicking here.
|
|
panic(err)
|
|
}
|
|
glctx = nil
|
|
}
|
|
case size.Event:
|
|
u.setGBuildSize(e.WidthPx, e.HeightPx)
|
|
sizeInited = true
|
|
case paint.Event:
|
|
if !sizeInited {
|
|
a.Send(paint.Event{})
|
|
continue
|
|
}
|
|
if glctx == nil || e.External {
|
|
continue
|
|
}
|
|
renderCh <- struct{}{}
|
|
<-renderEndCh
|
|
a.Publish()
|
|
a.Send(paint.Event{})
|
|
case touch.Event:
|
|
if !sizeInited {
|
|
continue
|
|
}
|
|
switch e.Type {
|
|
case touch.TypeBegin, touch.TypeMove:
|
|
s := deviceScale()
|
|
x, y := float64(e.X)/s, float64(e.Y)/s
|
|
// TODO: Is it ok to cast from int64 to int here?
|
|
touches[e.Sequence] = Touch{
|
|
ID: TouchID(e.Sequence),
|
|
X: int(x),
|
|
Y: int(y),
|
|
}
|
|
case touch.TypeEnd:
|
|
delete(touches, e.Sequence)
|
|
}
|
|
updateInput = true
|
|
case key.Event:
|
|
k, ok := gbuildKeyToUIKey[e.Code]
|
|
if ok {
|
|
switch e.Direction {
|
|
case key.DirPress, key.DirNone:
|
|
keys[k] = struct{}{}
|
|
case key.DirRelease:
|
|
delete(keys, k)
|
|
}
|
|
}
|
|
|
|
switch e.Direction {
|
|
case key.DirPress, key.DirNone:
|
|
if e.Rune != -1 && unicode.IsPrint(e.Rune) {
|
|
runes = []rune{e.Rune}
|
|
}
|
|
}
|
|
updateInput = true
|
|
}
|
|
|
|
if updateInput {
|
|
var ts []Touch
|
|
for _, t := range touches {
|
|
ts = append(ts, t)
|
|
}
|
|
u.input.update(keys, runes, ts)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetForeground(foreground bool) error {
|
|
var v int32
|
|
if foreground {
|
|
v = 1
|
|
}
|
|
atomic.StoreInt32(&u.foreground, v)
|
|
|
|
if foreground {
|
|
return hooks.ResumeAudio()
|
|
} else {
|
|
return hooks.SuspendAudio()
|
|
}
|
|
}
|
|
|
|
func (u *userInterfaceImpl) Run(game Game) error {
|
|
u.setGBuildSizeCh = make(chan struct{})
|
|
go func() {
|
|
if err := u.run(game, true); err != nil {
|
|
// As mobile apps never ends, Loop can't return. Just panic here.
|
|
panic(err)
|
|
}
|
|
}()
|
|
app.Main(u.appMain)
|
|
return nil
|
|
}
|
|
|
|
func RunWithoutMainLoop(game Game) {
|
|
theUI.runWithoutMainLoop(game)
|
|
}
|
|
|
|
func (u *userInterfaceImpl) runWithoutMainLoop(game Game) {
|
|
go func() {
|
|
if err := u.run(game, false); err != nil {
|
|
u.errCh <- err
|
|
}
|
|
}()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) run(game Game, mainloop bool) (err error) {
|
|
// Convert the panic to a regular error so that Java/Objective-C layer can treat this easily e.g., for
|
|
// Crashlytics. A panic is treated as SIGABRT, and there is no way to handle this on Java/Objective-C layer
|
|
// unfortunately.
|
|
// TODO: Panic on other goroutines cannot be handled here.
|
|
defer func() {
|
|
if r := recover(); r != nil {
|
|
err = fmt.Errorf("%v\n%s", r, string(debug.Stack()))
|
|
}
|
|
}()
|
|
|
|
u.context = newContextImpl(game)
|
|
u.graphicsDriver = graphicsDriver()
|
|
|
|
if mainloop {
|
|
// When mainloop is true, gomobile-build is used. In this case, GL functions must be called via
|
|
// gl.Context so that they are called on the appropriate thread.
|
|
ctx := <-glContextCh
|
|
u.graphicsDriver.(*opengl.Graphics).SetGomobileGLContext(ctx)
|
|
} else {
|
|
u.t = thread.NewOSThread()
|
|
graphicscommand.SetRenderingThread(u.t)
|
|
}
|
|
|
|
// If gomobile-build is used, wait for the outside size fixed.
|
|
if u.setGBuildSizeCh != nil {
|
|
<-u.setGBuildSizeCh
|
|
}
|
|
|
|
for {
|
|
if err := u.update(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
// outsideSize must be called on the same goroutine as update().
|
|
func (u *userInterfaceImpl) outsideSize() (float64, float64) {
|
|
var outsideWidth, outsideHeight float64
|
|
|
|
u.m.RLock()
|
|
if u.gbuildWidthPx == 0 || u.gbuildHeightPx == 0 {
|
|
outsideWidth = u.outsideWidth
|
|
outsideHeight = u.outsideHeight
|
|
} else {
|
|
// gomobile build
|
|
d := deviceScale()
|
|
outsideWidth = float64(u.gbuildWidthPx) / d
|
|
outsideHeight = float64(u.gbuildHeightPx) / d
|
|
}
|
|
u.m.RUnlock()
|
|
|
|
return outsideWidth, outsideHeight
|
|
}
|
|
|
|
func (u *userInterfaceImpl) update() error {
|
|
<-renderCh
|
|
defer func() {
|
|
renderEndCh <- struct{}{}
|
|
}()
|
|
|
|
w, h := u.outsideSize()
|
|
if err := u.context.updateFrame(u.graphicsDriver, w, h, deviceScale()); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (u *userInterfaceImpl) ScreenSizeInFullscreen() (int, int) {
|
|
// TODO: This function should return gbuildWidthPx, gbuildHeightPx,
|
|
// but these values are not initialized until the main loop starts.
|
|
return 0, 0
|
|
}
|
|
|
|
// SetOutsideSize is called from mobile/ebitenmobileview.
|
|
//
|
|
// SetOutsideSize is concurrent safe.
|
|
func (u *userInterfaceImpl) SetOutsideSize(outsideWidth, outsideHeight float64) {
|
|
u.m.Lock()
|
|
if u.outsideWidth != outsideWidth || u.outsideHeight != outsideHeight {
|
|
u.outsideWidth = outsideWidth
|
|
u.outsideHeight = outsideHeight
|
|
}
|
|
u.m.Unlock()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) setGBuildSize(widthPx, heightPx int) {
|
|
u.m.Lock()
|
|
u.gbuildWidthPx = widthPx
|
|
u.gbuildHeightPx = heightPx
|
|
u.m.Unlock()
|
|
|
|
u.once.Do(func() {
|
|
close(u.setGBuildSizeCh)
|
|
})
|
|
}
|
|
|
|
func (u *userInterfaceImpl) adjustPosition(x, y int) (int, int) {
|
|
xf, yf := u.context.adjustPosition(float64(x), float64(y), deviceScale())
|
|
return int(xf), int(yf)
|
|
}
|
|
|
|
func (u *userInterfaceImpl) CursorMode() CursorMode {
|
|
return CursorModeHidden
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetCursorMode(mode CursorMode) {
|
|
// Do nothing
|
|
}
|
|
|
|
func (u *userInterfaceImpl) CursorShape() CursorShape {
|
|
return CursorShapeDefault
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetCursorShape(shape CursorShape) {
|
|
// Do nothing
|
|
}
|
|
|
|
func (u *userInterfaceImpl) IsFullscreen() bool {
|
|
return false
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetFullscreen(fullscreen bool) {
|
|
// Do nothing
|
|
}
|
|
|
|
func (u *userInterfaceImpl) IsFocused() bool {
|
|
return atomic.LoadInt32(&u.foreground) != 0
|
|
}
|
|
|
|
func (u *userInterfaceImpl) IsRunnableOnUnfocused() bool {
|
|
return false
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetRunnableOnUnfocused(runnableOnUnfocused bool) {
|
|
// Do nothing
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetFPSMode(mode FPSModeType) {
|
|
u.fpsMode = mode
|
|
u.updateExplicitRenderingModeIfNeeded()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) updateExplicitRenderingModeIfNeeded() {
|
|
if u.renderRequester == nil {
|
|
return
|
|
}
|
|
u.renderRequester.SetExplicitRenderingMode(u.fpsMode == FPSModeVsyncOffMinimum)
|
|
}
|
|
|
|
func (u *userInterfaceImpl) DeviceScaleFactor() float64 {
|
|
return deviceScale()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetScreenTransparent(transparent bool) {
|
|
// Do nothing
|
|
}
|
|
|
|
func (u *userInterfaceImpl) IsScreenTransparent() bool {
|
|
return false
|
|
}
|
|
|
|
func (u *userInterfaceImpl) resetForTick() {
|
|
u.input.resetForTick()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetInitFocused(focused bool) {
|
|
// Do nothing
|
|
}
|
|
|
|
func (u *userInterfaceImpl) Input() *Input {
|
|
return &u.input
|
|
}
|
|
|
|
func (u *userInterfaceImpl) Window() *Window {
|
|
return &Window{}
|
|
}
|
|
|
|
type Touch struct {
|
|
ID TouchID
|
|
X int
|
|
Y int
|
|
}
|
|
|
|
func (u *userInterfaceImpl) UpdateInput(keys map[Key]struct{}, runes []rune, touches []Touch) {
|
|
u.input.update(keys, runes, touches)
|
|
if u.fpsMode == FPSModeVsyncOffMinimum {
|
|
u.renderRequester.RequestRenderIfNeeded()
|
|
}
|
|
}
|
|
|
|
type RenderRequester interface {
|
|
SetExplicitRenderingMode(explicitRendering bool)
|
|
RequestRenderIfNeeded()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) SetRenderRequester(renderRequester RenderRequester) {
|
|
u.renderRequester = renderRequester
|
|
u.updateExplicitRenderingModeIfNeeded()
|
|
}
|
|
|
|
func (u *userInterfaceImpl) ScheduleFrame() {
|
|
if u.renderRequester != nil && u.fpsMode == FPSModeVsyncOffMinimum {
|
|
u.renderRequester.RequestRenderIfNeeded()
|
|
}
|
|
}
|